NYC-WTC_000197589

NYC 9/11 Public Portal Document

Pace Analytical Services, Inc. 1700 Elm Street - Suite 200 Minneapolis, MN 55414

^ace Analytical_________ Method 8290 Results Analysis Tel: 612-607-1700 Fax: 612- 607-6444

Client - ATC Client's Sample ID ATC-1203-STY-DX3 Lab Sample ID 103183117 Filename U11209A_14 Injected By BAL Total Amount Extracted 1 Sample Matrix WIPE % Moisture NA Dilution NA Dry Weight Extracted NA Collected 12/03/2001 ICAL Date 11/10/2001 Received 12/04/2001 CCal Filename(s) U11209A_01 &U11209A_17 Extracted 12/05/2001 Method Blank ID BLANK-1358 Analyzed 12/10/2001 06'12 Native Cone EMPC LRL Internal ng's Percent Isomers ng/S ng/S ng/S Standards Added Recovery 2,3,7,8-TCDF 0.0041 0.00200 J 2,3,7,8-TCDF-13C 2.00 80 Total TCDF 0.0670 0.00200 2,3,7,8-TCDD-13C 2.00 75 1,2,3,7,8-PeCDF-13C 2.00 78 2,3,7,8-TCDD ND 0.00200 2,3,4,7,8-PeCDF-13C 2.00 76 Total TCDD 0.1100 0.00200 1,2,3,7,8-PeCDD-13C 2.00 79 1 1,2,3,7,8-PeCDF ND 0.01000 1,2,3,4,7,8-HxCDF-13C 1,2,3,6,7,8-HxCDF-13C 2.00 2.00 117 101 2,3,4,7,8-PeCDF ND 0.01000 2,3,4,6,7,8-HxCDF-13C 2.00 106 Total PeCDF 0.0130 0.01000 J 1,2,3,7,8,9-HxCDF-13C 2.00 94 I 1,2,3,7,8-PeCDD ND 0.01000 1,2,3,4,7,8-HxCDD-13C 1,2,3,6,7,8-HxCDD-13C 2.00 2.00 99 106 Total PeCDD 0.1200 0.01000 1,2,3,4,6,7,8-HpCDF-13C 2.00 82

s 1,2,3,4,7,8-HxCDF 1,2,3,6,7,8-HxCDF 2,3,4,6,7,8-HxCDF ND ND ND 0.01000 0.01000 0.01000 1,2,3,4,7,8,9-HpCDF-13C 1,2,3,4,6,7,8-HpCDD-13C OCDD-13C 2.00 2.00 4.00 63 66 39 P 1,2,3,7,8,9-HxCDF ND 0.01000 1,2,3,4-TCDD-13C 2.00 NA I Total HxCDF 1,2,3,4,7,8-HxCDD 0.0310 ND 0.01000 J 0.01000 1,2,3,7,8,9-HxCDD-13C 2,3,7.8-TCDD-37CI4 2.00 0.20 NA 75 ’a 1,2,3,6,7,8-HxCDD ND 0.01000 "J 1,2,3,7,8,9-HxCDD ND 0.01000 Total HxCDD 0.1200 0.01000 1,2,3,4,6,7,8-HpCDF 0.0290 0.01000 J Total 2,3,7,8-TCDD 1,2,3,4,7,8,9-HpCDF ND 0.01000 Equivalence: 0.0016 ng/S Total HpCDF 0.0290 0.01000 J (Using ITE Factors) 1,2,3,4,6,7,8-HpCDD 0.0520 0.01000 Total HpCDD 0.0790 0.01000 OGDF 0.0260 0.02000 J OCDD 0.3400 0.02000 r3 LRL = Lower Reporting Limit Cone = Concentration (Totals include 2,3,7,8-substituted isomers) I = Interference EMPC = Estimated Maximum Possible Concentration E = PCDE Interference A = Detection Limit based on signal-to-noise measurement S = Saturated signal J = Concentration detected is below the calibration range ND = Not Detected B = Less than 10 times higher than method blank level NA = Not Applicable P = Recovery outside of target range NC = Not Calculated

1 Nn = Value obtained from additional analysis * = See Discussion Report No.... 01-1051682

1a REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Ino.

CITY_21MC100_003046216

NYC-WTC_000197593